This Centralizer it is being made with steel and Nylon, for Oil Field pumping time, the Oil Bar runing and get abrasion with the oil pipe. Our products can avoid it well.

Φ25.4mm(1"X1") φ22.2mm(1"X7/8")
Φ22.2mm(7/8"X7/8") φ19.05mm(1"X7/8")
Φ19.05mm(3/4"X3/4")